Texas Instruments LM293A Bedienungsanleitung

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LM393B, LM2903B, LM193, LM293, LM393 and LM2903 Dual Comparators

1 Features

•NEW LM393B and LM2903B

•Improved specifications of B-version

–Maximum rating: up to 38V

–ESD rating (HBM): 2kV

–Low input offset: 0.37mV

–Low input bias current: 3.5nA

–Low supply-current: 200µA per comparator

–Faster response time of 1µsec

–Extended temperature range for LM393B

–Available in tiny 2 x 2mm WSON package

•B-version is drop-in replacement for LM293,

LM393 and LM2903, A and V versions

•Common-mode input voltage range includes

ground

•Differential input voltage range equal to maximum-

rated supply voltage: ±38 V

•Low output saturation voltage

•Output compatible with TTL, MOS, and CMOS

2 Applications

•Vacuum robot

•Single phase UPS

•Server PSU

•Cordless power tool

•Wireless infrastructure

•Applicances

•Building automation

•Factory automation & control

•Motor drives

•Infotainment & cluster

3 Description

The LM393B and LM2903B devices are the

next generation versions of the industry-standard

LM393 and LM2903 comparator family. These next

generation B-version comparators feature lower offset

voltage, higher supply voltage capability, lower supply

current, lower input bias current, lower propagation

delay, and improved 2 kV ESD performance and

input ruggedness through dedicated ESD clamps.

The LM393B and LM2903B can drop-in replace the

LM293, LM393 and LM2903, for both "A" and "V"

grades.

All devices consist of two independent voltage

comparators that are designed to operate from a

single power supply over a wide range of voltages.

Quiescent current is independent of the supply

voltage.

Device Information

PART NUMBERPACKAGE

(1)

BODY SIZE (NOM)

LM393B, LM2903B,

LM193, LM293, LM293A,

LM393, LM393A, LM2903,

LM2903V, LM2903AV

SOIC (8)4.90mm x 3.91mm

LM393B, LM2903B,

LM293, LM293A, LM393,

LM393A, LM2903

VSSOP (8)3.00mm x 3.00mm

LM293, LM393, LM393A,

LM2903

PDIP (8)9.81mm × 6.35mm

LM393, LM393A, LM2903SO (8)6.20mm x 5.30mm

LM393B, LM2903B,

LM393, LM393A, LM2903,

LM2903V, LM2903AV

TSSOP (8)3.00mm x 4.40mm

LM393B, LM2903BSOT-23 (8)2.90mm x 1.60mm

LM393B, LM2903BWSON (8)2.00mm × 2.00mm

(1)For all available packages, see the orderable addendum at

the end of the data sheet.

Family Comparison Table

SpecificationLM393BLM2903B

LM393

LM393A

LM2903

LM2903V

LM2903AV

LM193

LM293

LM293A

Units

Supply Voltage2 to 362 to 362 to 302 to 302 to 322 to 302 to 30V

Total Supply Current

(5V to 36V max)

0.6 to 0.80.6 to 0.81 to 2.51 to 2.51 to 2.51 to 2.51 to 2.5mA

Temperature Range−40 to 85−40 to 1250 to 70−40 to 125−40 to 125−55 to 125−25 to 85°C

ESD (HBM)2000200020002000200020002000V

Offset Voltage

(Max over temp)

± 4± 4

± 9

± 4

± 15

± 15

± 4

± 9

± 9

± 4

mV

Input Bias Current (typ / max)3.5 / 253.5 / 2525 / 25025 / 25025 / 25025 / 10025 / 250nA

Response Time (typ)111.31.31.31.31.3µsec

LM393B, LM2903B, LM193, LM293, LM293A, LM393, LM393A, LM2903, LM2903V

SLCS005AH – OCTOBER 1979 – REVISED APRIL 2025

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Produktspezifikationen